<template>
	<view>
    <!-- 商品列表区域 -->
    <view class="goods-list">
      <view v-for="(goods,i) in goodsList" :key="i" @click="gotoDetail(goods)">
        <!-- 为 my-goods 组件动态绑定 goods 属性的值 -->
            <my-goods :goods="goods"></my-goods>
      </view>
    </view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				//请求参数列表queryobj
        queryobj:{
          //查询关键词
          query: '',
          //分类ID
          cid: '',
          //页面索引
          pageNum: 1,
          //每页长度
          pagesize: 10
        },
        //商品数据列表
        goodsList: [],
        //数据总数
        total: 0,
        //节流阀
        isloading: false
        
			};
		},
    onLoad(options) {
      this.queryobj.query = options.query || ''
      this.queryobj.cid = options.cid || ''
      
      //获取商品数据列表函数
      this.getGoodsList()
    },
    onReachBottom() {
      //判断数据是否加载完毕
      if(this.queryobj.pageNum * this.queryobj.pagesize >= this.total) return uni.$showMsg('数据加载完毕')
      if(this.isloading) return
      this.queryobj.pageNum += 1
      this.getGoodsList()
    },
    // 下拉刷新的事件
    onPullDownRefresh() {
      // 1. 重置关键数据
      this.queryobj.pageNum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []
    
      // 2. 重新发起请求
      this.getGoodsList(() => uni.stopPullDownRefresh())
    },
    methods:{
      async getGoodsList(cb){
        this.isloading = true
        const {data:res} = await uni.$http.get('/api/public/v1/goods/search',this.queryobj)
        this.isloading = false
        // 只要数据请求完毕，就立即按需调用 cb 回调函数
          cb && cb()
        if(res.meta.status !== 200) return uni.$showMsg()
        
        this.goodsList = [...this.goodsList,...res.message.goods]
        this.total = res.message.total
      },
      gotoDetail(goods){
        uni.navigateTo({
          url:'/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id
        })
      }
    }
	}
</script>

<style lang="scss">
 
</style>
